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algol13
3 years ago
15

What does the ozone layer protect us from?

Physics
2 answers:
djyliett [7]3 years ago
6 0
For the future, Put the right subject please, The answer is to protect us from harmful UV rays, Which include UVA, UVB, And UBC.
DaniilM [7]3 years ago
5 0

The ozone layer protects us from ultra violet radiation. Without the ozone layer, life on Earth. UV is energetic and capable of disrupting the complex chemistry within living tissues. Increased UV exposure heightens the risk of skin cancer in humans.

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what is the closest to the order of magnitude of the energy rquired to split a nucleus in to its individual protons and neutrons
skad [1K]

Answer:

More than two million electron volts.

Explanation:

More than two million electron volts energy are needed to break or split a deuteron into a proton and a neutron. Nuclear binding energy is the type of energy that is required to split an atom's nucleus into protons and neutrons. The deuteron is an isotope of hydrogen that is composed of a proton and a neutron and it is a stable particle. Very huge amount of energy is needed for the splitting of nucleus due to the presence of heavy particles i.e. proton and neutron.

5 0
3 years ago
The blocks shown in the pictures below are all made of wood. Which car will move the fastest?
Ne4ueva [31]

Answer:

The one with the less mass

Explanation:

7 0
3 years ago
What is meant by black hole ?​
guapka [62]

Answer:

A black hole is a region of space having a gravitational field so intense that no matter or radiation can escape.

Explanation:

Sorry if this isn't what you meant or were looking for.

3 0
2 years ago
Read 2 more answers
A train accelerates from 23m/s to 190m/s in 54 seconds. What was its acceleration?
Ierofanga [76]

Answer:

Use the method on the image and solve it.

3 0
3 years ago
n deep space, sphere A of mass 47 kg is located at the origin of an x axis and sphere B of mass 110 kg is located on the axis at
Volgvan

Answer:

a)-1.014x 10^{-7J

b)3.296 x  10^{-7J

Explanation:

For Sphere A:

mass 'Ma'= 47kg

xa= 0

For sphere B:

mass 'Mb'= 110kg

xb=3.4m

a)the gravitational potential energy is given by

U_{i = -GMaMb/ d

U_{i= - 6.67 x 10^{-11} x 47 x 110/ 3.4 => -1.014x 10^{-7J

b) at d= 0.8m (3.4-2.6) and U_{i=-1.014x 10^{-7J

The sum of potential and kinetic energies must be conserved as the energy is conserved.

K_{i + U_{i= K_{f + U_{f

As sphere starts from rest and sphere A is fixed at its place, therefore K_{i is zero

U_{i= K_{f + U_{f

The final potential energy is

U_{f= - GMaMb/d

Solving for 'K_{f '

K_{f = U_{i + GMaMb/d => -1.014x 10^{-7 + 6.67 x 10^{-11} x 47 x 110/ 0.8

K_{f = 3.296 x  10^{-7J

6 0
3 years ago
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